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Method of assembling a sealing ring in an outer annular groove

a technology of annular groove and sealing ring, which is applied in the field of assembly tools for assembling sealing ring in annular groove, can solve the problems of large and heavy, complicated and expensive hydrostatic presses, and requires a large physical effort and skill on the part of users, and achieves the effect of simple and economical production, simple and safe us

Inactive Publication Date: 2005-08-16
HERING MARTIN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is an assembly tool for sealing rings in machine parts. The tool is simple and economical to produce and use, and it reduces the risk of injury. It includes a pneumatic piston-cylinder unit that press-fits the sealing ring into the machine part's annular groove. The tool is designed to be easily transported and used in different machine parts. It is also a releasable connection, making it easy to install and remove. The tool is advantageous because it simplifies the assembly process and reduces the risk of damage to the sealing ring."

Problems solved by technology

Such hydraulic presses are complicated and expensive to produce.
Moreover, they are large and heavy and are accordingly not easy to transport.
However, this method requires major physical effort as well as skill on the part of the user, whose is furthermore not infrequently injured in the process.
Moreover, this method does not produce reliable results, since damage to the seal during assembly frequently occurs.

Method used

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  • Method of assembling a sealing ring in an outer annular groove
  • Method of assembling a sealing ring in an outer annular groove
  • Method of assembling a sealing ring in an outer annular groove

Examples

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Embodiment Construction

[0030]In FIG. 1, a closing element 1 can be seen of a double-seat valve, not otherwise shown, of the kind used in the foods industry for handling, for instance for dispensing pastelike foods into containers. The closing element 1 has an encompassing, obliquely radially outward-protruding sealing portion 2, which is provided with an annular groove 4 that is open radially outward.

[0031]A sealing ring 3 used here differs from simple O-ring seals in having two encompassing protrusions 6, which are disposed parallel to one another in such a way that between them they form a recess 5 of V-shaped cross section.

[0032]In FIG. 2, an assembly tool 10 can be seen, secured to the closing element 1. The assembly tool comprises an annular work piston 11, which is disposed axially displaceably in a likewise annular cylindrical part 12, and a flange part 13; the sealing ring 3 is clamped in place between a support portion 14 of the flange part 13 and an axially protruding, annular assembly portion 1...

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Abstract

The invention relates to an assembly tool for assembling a sealing ring (3) in an annular groove (4, 9) of a machine part (1, 7), in particular of a valve plate (7). By the provision that the assembly tool (10, 23) includes a pneumatic piston-cylinder unit (11, 12, 26, 27) for uniformly press-fitting the sealing ring (3) into the annular groove (4, 9), a simple assembly tool that is economical to make, is versatile to use and can be used in mobile application, and nevertheless enables reliable seal assembly without injuring anyone.

Description

CROSS REFERENCE TO A RELATED APPLICATION[0001]This application is a division of application Ser. No. 10 / 111,884 filed Dec. 26, 2002 now U.S. Pat. No. 6,862,789, which is a 371 of PCT / EP00 / 09471 filed Sep. 28, 2000.BACKGROUND OF THE INVENTION[0002]The invention relates to an assembly tool for assembling a sealing ring in an annular groove of a machine part, in particular of a valve plate.[0003]There are already known assembly tools in which the seal is press-fitted into the sealing groove by a hydraulic press. Such hydraulic presses are complicated and expensive to produce. Moreover, they are large and heavy and are accordingly not easy to transport. For this reason, the user typically procures only a single such device and installs it at some central point in a repair and maintenance facility This in turn requires that the individual machine parts, such as valve plates, be brought to the central maintenance facility, so that the new sealing rings can be inserted there, in order for ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B25B27/00B23P19/08B23P19/02B25B27/28F16J15/00F16J15/32
CPCB23P19/084B25B27/0028Y10T29/5383Y10T29/4987Y10T29/49297Y10T29/53657Y10T29/49872
Inventor HERING, MARTINJENSEN, KARL AAGE LINDHOLM
Owner HERING MARTIN
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